Valve



` E. MQNTAGUE.

VALVE;

APPLICATION FILED FEB. 23| 1919.

EDWARD MoN'rAGUE, or criticado, ILLINOIS.

y VALVE.

To allya/)hom z'tmayconcern: i ll lie it lmownthat I, EDWARD MoN'TeeUn, a citizen of the United States, residing at fGhicago, in the county of Cook and'State 4of Illinois, have invented certain new and useful improvements in Valves,of which the following is a specificatlon.

The invention relates to valves for ex- I plosive engines, and particularly to valves for such engines as are employed in automobiles, aeroplanes and the like., Which operate at high speed. Such valves, as ordi` narily constructed, become heated fn useto such a degree as to become distorted, corroded or pitted, With the result that they lack durability, fail to-seat effectively, and ot-.uez vise fail to function properly.

'i he principal object of the present invention is to provide a valve which shall not become heated to an excessive and injurious temperature While in use in an explosive enlili ne. L A further and incidental object of the invention is to provide a valve of the character indicated Which may be' manufactured at a relatively low cost, which is durable, and Which is otherwise of a acter. Y I

Referring to the accompanying drawings, Figure l is a central vertical elevationfsection through a valve, illustrating one embodiment of my invention. Fig. 2 is a transverse sectional vien7 taken on line 2--2 of Fig. l.

The valve may be of any preferred form. Herein it comprises a stem l and a disk or head 2 having an annular tapered edge 3 for,

which a seat isprovided in the enginestructure (not shown). v

As is usual, the stem 1 and head 2 of the `valve are made of steel, but for the purpose of preventing the valve from becoming heated excessively in use l provide in thevalve a `heat conductor 4 of a different `lrind of.

metal adapted to conduct the heat from the valve head to the stem, from which it radiates, being absorbed by the cooling medium surrounding the stem. Preferably a metal of high conductivity, such' as copper7 is employed for this purpose, and is made in the forni of a rod which is inserted into an opening or bore 5 extending longitudinally of the stem 1. Herein such bore isshown i as extending from a point near the free end lili of the stem and terminating in the head 2. Tocompensate for the unequal expansion speenicauon of Landerneau `Application iledFebruary 28; 1919. Serial No. maarre.`

practical charl lllatented July lli, i920.

, of the steel `and the metal o f the conductor, `and thus prevent the stem from expanding unduly, causing it to stick` in its guide, the conductor 1s preferably made a trifle smaller infdiameter` than `the bore so as to have a relatively free lit therein.`

Any `.suitable means for securing the conductor 1n ployed. Herein l have shown the upper face of the valve head 2 as provided with a cavity 6 and the conductorwis provided with an enlarged portion 7 which may besivaged place Within the valve may be'eni- I into binding engagement with the head.

Being u'nconlined on its upper side, said portion 7 is capable of expanding Without injury to the parts although it has a snug engagement with the head. L

It will be understood that the invention is not limited to the particular construction and arrangement set forth, but that various changes may be made within the scope of the inyention. The conductor may be of any preferred form, it may be arranged in the valve in any preferred manner, and it may be secured therein in any Way that may be deemed desirable.

I claim as my invention:

l. In a valve for explosive engines having a stem and a head, means' for conducting 'largement on the rod fitting snugly in its cavity so as to be firmly secured therein.

2. ln a valve for explosive engines having a stem and a head, means for conducting heat from the head to the stem comprising a rod of metal pf relatively high 'conductivity, said stemhaving a bore extending longitudinally' thereof into Which said rod is entered, and said rod having an end portion fitting snugly in said head so Vas to be lirmly secured therein but opening into the face of the head so as to be unconned.

3. lin a valve for explosive engines having a stem and a head, means for conducting heat from the head to the stern comprising a rod formed of metal of relatively high conductivity, said stem having an opening extending longitudinally thereof adapted to receive said rod but made of slightly f greater cross-section than the rod, said rod -to secure it in position' in having a portion rigid with the valve but with one face exposed.

4. In combination with a Valve having a head and a stem, a heatA conductor formed of copper or the like adapted to be entered within said stem, and means for anchoring one lend of the conductor in the head so as the stem while permitting relative movement between the conductor and the stem.

5. A device of the character described having,` in 'combinatitom a metallic part EDWARD MONTAGUE. 

